How to pass parameters to UserControl
- Define a constructor method in your UserControl class
public partial class MyUserControl : System.Web.UI.UserControl
{
public MyUserControl()
{
}
public MyUserControl(string param1, int param2, bool param3)
{
// Do anything you whant for your parameters here
textbox1.Text = param1;
.....
}
}
- Define our customize LoadControl() method so that the parameters can be pass into the UserControl
private UserControl LoadUserControl(string controlPath, params object[] parameters)
{
List<Type> paramTypes = new List<Type>();
foreach(object param in parameters)
{
paramTypes.Add(param.GetType());
}
Page page = new Page();
UserControl uc = page.LoadControl(controlPath) as UserControl;
ConstructorInfo ci = uc.GetType().BaseType.GetConstructor(paramTypes.ToArray());
if(ci == null)
{
throw new MemberAccessException( "The requested constructor was not found on : "
+ uc.GetType().BaseType.ToString());
}
else
{
ci.Invoke(uc, parameters);
}
return uc;
}
- Now you can use the LoadControl as below to pass the parameters to the UserControl
// Initiallize the UserControl with it parameters .....UserControl myControl = LoadControl(
"MyUserControl.ascx"
, "This is value of param1"
, 1234, true);
